BMW N54 MSD80 DME Repair MOSFETs (Set of 6) - OEM FDB14N30TM Replacement for 335i, 135i, 535i

Product Title

BMW N54 MSD80 DME Repair MOSFETs (Set of 6) - OEM FDB14N30TM Replacement for 335i, 135i, 535i

Product Description

Restore your N54 engine performance with genuine, high-reliability MOSFETs. A common failure point in the BMW MSD80 Engine Control Unit (DME) is the failure of the ignition transistors (MOSFETs), leading to permanent misfires and "limp mode." This kit includes a complete set of six (6) genuine FDB14N30TM MOSFETs, specifically rated at 300V to meet or exceed OEM specifications.

Why Choose Our Kit?

• 100% Authentic Components: Avoid the "cheap" counterfeits common on third-party marketplaces that can lead to permanent DME board damage. We source directly from the manufacturer.

• Complete Set: Includes all 6 MOSFETs required for both Bank 1 and Bank 2.

• Exact Fitment: Designed specifically for the MSD80 DME found in N54-equipped vehicles.

Symptoms of MOSFET Failure

If your BMW is experiencing the following, your DME likely requires these replacements:

• Fault Codes: 30BA (Bank 1 Failure) or 30BB (Bank 2 Failure).

• Driveability: Engine running on only 3 cylinders, severe shaking, stalling, or a "No Start" condition.

• Warning Lights: Engine malfunction/Check Engine Light (CEL) and Limp Mode.

Vehicle Compatibility

Engine: N54 Twin-Turbo 3.0L DME Type: MSD80 Only (Will not fit MSD81 or other variants)